Finding the Fourth Proportional to 9,150.24, 12,626.64 and 5,171.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.24 : 12,626.64 = 5,171.36 : x
2. Step 2: Convert to fraction form
   9,150.24/12,626.64 = 5,171.36/x
3. Step 3: Cross multiply
   9,150.24x = 12,626.64 × 5,171.36
4. Step 4: Simplify right side
   9,150.24x = 65,296,901.03
5. Step 5: Solve for x
   x = 65,296,901.03/9,150.24
6. Step 6: Final answer
   x = 7,136.09